I’m on a 9 yr old giant tcr aluminum frame. I’m wondering if I’m weakening welds or other things by bunny-hopping pot holes or other road debris. It isn’t often, maybe once every other ride - sometimes less. There are times shadows hide things until the last second or if I get forced too far right by traffic and I jump them so I don’t kill my rims or risk a fall. Is it ok or cease and decist.
thanks
Barry
I’ve never heard a problem with this. I bunny hop stuff all the time. Speed bumps are the most common, big ones!! Though my bike is carbon, I always did this with past alum frames, too.
LOL, I just busted out laughing at the title. Sorry, didn’t read the substance.
I’m pretty big and while I am no bunny hop expert, it doesn’t feel like its really that stressful on the bike since I seem to have some control over how hard the landing is. I know my teeth hurt when I hit potholes but they don’t coming down from my epic 1/2 inch bunny hops.
You have to do a cost/benefit analysis. I did a sweet bunny hop this weekend over a pothole that was about a foot wide and 6 inches deep. I think I got 3/4 inch of air this time. I was pinned in by cars on one side and high curb on the other so it was either job the hole or die. Whatever stress I put on my frame was way better for both the frame and me than hitting that hole 
The short answer is no. The long answer is noooooooooooooo.
Aluminum has finite fatigue life at all strain levels. Every pedal stroke, bump, pothole,etc. takes a little life out of the frame. That’s not as bad as it sounds. From a design standpoint what that means is that Al frames are designed based on worst case scenarios (ex. what is a 300lb. guy rode this bike 50miles a day over cobblestones for five years). The result is that frames can easily take the stresses of bunny hops and these will not wear out the frame appreciably faster.
I have a Cannondale from '91 that I regularly bunny hop over bridge expansion gaps on my rides…no worries.
LOL, I just read:
I’m on a 9 yr old giant tcr aluminum frame.
as:
I’m a 9 yr old on a giant tcr aluminum frame.
If that were the case, bunny hopping would be a normal expectation of riding. 
If you’re bunny hopping to avoid a shock from a bump or hole, I’ve gotta think you’re doing less damage than the greater shock of hitting the bump or hole would have caused.
I doubt you’re really “bunny hopping”… more unweighting the bike. In which case you’re fine.
Unless you give it a power stroke to bring the front wheel up then match with the rear… and in that case WTF?
No, though its hell on the bunny.